Electrotherapeutic apparatus.



nono; or usmaorn:

1 'nnnornocrnnnarnuirrc )Arran-urns! Y the-Empire 0f Japan, residing'have.' invented jc'en'tain`- new which the `following isa'specification.

This invention relates t o electro'-tlierapeuf lof comparatively 4lowfrequency and voltage The obj ect of my inventio'nf-isfto 'provide an.apparatus wherein a current 'of very high frequencyfand voltage and asecond current at the same or ldii'erent times without cansingshort-circuit,wherebyjoint or' alternate lin appliqatonmaybe made t0 apatient accord- 'to the-SYIDPOIDS 0f the disease. 's

' he accompanying drawing showsran-'eze ample of the circuits accordingto theinvenj tion.

cuit whereby lsioncurrent, produced by the discharging' action of acondenser, flows through a hue; nf.1an.body,l1is' the samev as-the onecommonly 'known as *diathemilie,l l and ma In `'my invention, fthearrangement' of cnfthe high frequency,

be 'de-'A scribed briefly as follows with re erence to .the drawing:

10 which are Ato A-prirnary circuit 1 whichmay bejcon#` "nected with a-.suitable alternating current `source includes the primary coil 21 of'-a transformer-2, and the secondary coil 22 of the latter forms part ofa circuit?) which is. provided `with a discharging'gap 4e, .ajcon`.denser 5: and a 'primary coil- 61 for inducing current in a `furthercircuit?. A secondary, coil 62 corresponding-to the primary coil 61forms part of the' circuit, which also includes a condenser 9, and two oontactsl', beapplied tov the human body to be'treated sci asto cause anoscillay tory. current of'very high frequency to flow lthrough the partaffected.A Inor'der to-ob- "tain a brush-likedischarge, when required,it iscnvenient to provide an'induction coil to the secondary 8 arranged'concentrically I brush 'l1/1n the coil and va -dis charging circuitofthe secondary coil 8'. When using this faeviee the appar-'One of 'theanagrafici,-

held 'i clsc to the part requiring the :medical treatment. Thev.e'sser'itial as follows:-

f A .Circuit- 11'2'1. is; provided *branching out. :from thetwo .pole'sof the condenser9, and' -.1nc li 1ds the-secondary -coil 132 of a smallin'- duction'coil 13-with' -ai niovableiron .core 133,

and the- 'primary ccil; :131' vof said induction,

coilforms ApartQo ':a circuit 121 whi'ch i'ncludes anj'interrupte 14,13,commutat'or 18 herein liter des 1bed, the 'coil '.21 andags'witch ning--ianfd'g'fclosing; the 1circuit. A

element may also be arranged a'sv ShOWl `for thejtreatment'ofithe'patient-by heat,v

'j The 'abdve-mentioned'--. comrnutator com# `prises' a lever-shapedmember 181 oscillating on an' axis. 17.' 'as its'center,its twoarmsbeing insulated from' eaclif o tl'er1fand respectively arranged :toi.touch-5th@"contact points -192 are' vre's pectivelycc'uifneitedjiu/ith the secondary; co1 andthegpriniary coil '2 1 of thetrans-fcrm'e'r. 2`. ':The contact point 191 is connected thro-ughaconductor'21,with contact.

point 20, andfsaidj contact point 20 'with the circuit-1, and-'thecontact point 1921.is conlnected to the circuit. The point. "at whichthe circuit12'1Y connects lwiththe primary coil Y21 .of the transformer2' .may b TegU1afQd.,

rlhe contacts 192, 191and 20 are sov arranged. that when ,theAright-hand,-a 'r1 'n .of 4 the com# mutator 18 vtouches the contactpoint 191 the otherv arni will't'ouch the contactpoint '192 and when"thev former' touches* the Contact point 20, thelatter'will-ln1ove ofi'oi the centact` point-192.: The contact point 191,` is preferably.elongatedas shown in the draw ing, so that when the commutator is beingpoints ofthis invention are s 5.5.

moved over'fro'm the position show nthecircuit'l is Vopened before thecircuit 3. A'If the; commutator is positioned through the arm-181,contact point 191, conductor 21 and contact point 20, and the cir-- cuitvis also closed through the other arm afs indi;- lca'ted'in thedrawing', the circuit 1 isrclosed 181 and contact point 192 with theresult that an oscillatory currentof very high frequency' will be setupin the circuit 7. It at this time the switch 15 in the circuit 1'21 isopen andthe heating element 16 cut out or re-4 movedrthe induction coil13 produces no action 'and consequently only a very high frequencycurrentof hightension will exist in the circuit 7. But if the-switch 15is closed,-

duction coil 13, and consequei'itlyv there will' be two currents inducedin the circuitI T. The

high frequency, high tension, current pro duced by the coil 61 and thecomparatively low frequency, low tension current produced 'by the coil131 are quite dierent in their nature, that is to say, the former onlyiows with difficulty through a coil having self induction, and thelatter will not iow through al condenser. Thus, in the presentapparatus, the high 4frequency current will close its circuit onlythrough the condenser 9 regardless ot' the circuit 122 and the lcurrentfrom the coil 132 will flow through all parts of the circuit T, withoutshort circuiting through the condenser 9. Accordingly both currents willflow into the circuit T which includes the human .body under treatment)without interfering with one another.

If the right-hand arm 181', ofthe commutator 18 is now moved to thecontact point 20, the other arm 181 moves away from the contact point192 and the circuit 3 is opened but the other circuits remain closed,with the result that only the current due to the induction coil 13 willflow in the circuit 7. lith die parts thus connected the circuit 1 may,

of course, be regulated by the operation of an auto-transformer, or thecurrent in the circuit 121 by moving the iron core 133 othe inductioncoil 13. As mentioned above,-

this invention is characterized by the fact that the two dierent kindsof current are, at the same or at dierent times, iii-ade to flow throughwhat might be termed the operating circuit viz: the circuit T whichincludes the body of the patient. The high frequency current obtainableby the action ot' the coil (51 mainly raises the temperature ot thehuman body and gently operates on cells of human body but it does notgive any electric shock to the nerves when said current flows throughthe body. Thus such .electricl current has a bactericidal eti'ect formedical treatment. The current derived from the induction coil `13chieiiy acts on the nerves and has as its main effect the cure offatigue of the human body. Therefore,

Y obtained.

it both of said currents be applied :simultaneously, there may he manvcase wherein remarkable elcctrothcrapeuticgeiifccts'may be It isuneconomic I t f'provide both of these arrangements separately, and evenif both be provided separately but in a .single apparatus, it requires alarge number of regulators, switches` etc., and it is troublesome inpractice. Ininy apparatus, the comparatively low frequency, loiv tensioncircuit branches out from the two poles of the condenser inserted in theoperating circuit, and thetwo kinds of electric current may be usedtogether so as to suitl the requirements of the patient without causingshort circuit and thus the arrangement of circuits may be made verysimple. Besides, as the two currents can be applied at the same ordiierent time, it is very easy to handle the apparatus and variouseffects in the medical treatment will beobtained.

Having thus described my invention, what I claim and desire to secure byLetters Patent is:

1. In an electro-therapeutic apparatus the combination of a portion of acircuit having terminals adapted to be applied to the body ot' thepatient, means for producing a very high reQuency,hightension current insaid circuit. which includes a condenser, an induction coilthe secondarycoil of which is connected to the tivo poles ot' said condenser, and amain currentsupply which feeds the primary coil of said induction coiland also provides the current for inducing the said high frequency, hightension current.

2. In an electro#therapeutic apparatus the combination oi' a portion ofa circuit havin terminals adapted to be applied to the body of thepatient, means for producing a very high frequency. high tension currentin said circuitwhich includes a condenser, an induction .coil` thesecondarycoil offyvhich is connected to the vtwo poles ofsaid-condenser,

a main current supply which feeds the primary coil ot" said inductit-m.coil and also provides the current for inducing thefsaid high`frequency, high tension current, a switch for controlling the iiow ofcurrent from the main current. supply to the primary coil of saidinduction coil, and a commutator for controlling the action ot' theinaincurrentsupply upon the iii-st mentioned circuit.

3. In an electro-therapeutic apparatus the combination of a portion of acircuit having terminals adapted to be applied to the body of thepatient, a condenser and the secondary coil of a transformer: a secondcircuit including the primary coil of said transformer, a spark gap andthe secondary coil ot' a sec- .ond transformer; a second condenserconnected across the ends of thc lattersecondary coil; a main supplycircuit including the primar y coil of said second transformer; an

eis

Lumen y 3 nductionol the secondary coil of whch is In testimony whereofI hni'e-.vaxed my Connected c n the two polosof the. Erst-mow .Qignnhn'ein prvsvwio of' two wtnccs. tohed Cqndeusqr: q crcut. invlqdng the pr-YSH l NA() NAW" ITL unify-C011 of sind mduct-xon coll :1nd rocmvingcurrent from said main curieut. Supply: :l Nftnesses:

switch in the last-mentioned circuit; and nv DEN Kum.'

Comunit-atm' in said seco'nd circuit. f lsHmO ABF..

